Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 1h 27m at 11:53 pm (0.8 ft)
Next high tide (tomorrow) : 5:32 am (6.1 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Sep 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:416.810:567.04:420.75:020.97:027:48Waxing Crescent1Tue
2Wed11:166.911:346.95:130.75:391.17:037:46Waxing Crescent2Wed
3Thu11:557.05:480.86:211.37:037:45Waxing Crescent3Thu
4Fri12:166.712:407.16:280.97:101.47:047:44First Quarter4Fri
5Sat1:036.61:327.27:151.08:101.67:047:43First Quarter5Sat
6Sun1:576.52:307.38:121.09:191.67:057:41First Quarter6Sun
7Mon2:576.43:357.49:191.010:291.47:057:40First Quarter7Mon
8Tue4:046.54:457.610:290.811:351.17:067:39Waxing Gibbous8Tue
9Wed5:136.85:548.011:380.57:077:38Waxing Gibbous9Wed
10Thu6:187.26:568.312:360.612:430.27:077:36Waxing Gibbous10Thu
11Fri7:187.77:528.61:340.21:45-0.27:087:35Full Moon11Fri
12Sat8:138.18:458.82:27-0.22:42-0.47:087:34Full Moon12Sat
13Sun9:068.49:368.73:18-0.53:36-0.57:097:32Full Moon13Sun
14Mon9:588.610:268.44:05-0.64:28-0.47:097:31Waning Gibbous14Mon
15Tue10:498.511:178.04:51-0.55:18-0.17:107:30Waning Gibbous15Tue
16Wed11:418.45:36-0.26:090.47:117:29Waning Gibbous16Wed
17Thu12:097.612:338.16:230.27:030.97:117:27Waning Gibbous17Thu
18Fri1:017.11:257.87:120.68:001.37:127:26Third Quarter18Fri
19Sat1:546.72:187.58:061.19:011.67:127:25Third Quarter19Sat
20Sun2:486.53:127.39:031.410:001.87:137:23Third Quarter20Sun
21Mon3:446.34:087.110:011.510:551.87:137:22Third Quarter21Mon
22Tue4:416.35:047.110:561.511:451.77:147:21Waning Crescent22Tue
23Wed5:366.45:577.211:481.47:157:20Waning Crescent23Wed
24Thu6:276.66:447.412:311.612:371.37:157:18Waning Crescent24Thu
25Fri7:126.97:277.51:131.41:231.17:167:17Waning Crescent25Fri
26Sat7:527.18:067.61:521.22:061.07:167:16New Moon26Sat
27Sun8:297.38:427.62:291.02:470.97:177:14New Moon27Sun
28Mon9:037.59:167.53:030.83:260.97:187:13New Moon28Mon
29Tue9:357.69:507.43:370.84:030.97:187:12New Moon29Tue
30Wed10:087.610:267.24:090.74:401.07:197:11Waxing Crescent30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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What time does the tide turn (slack tide) in St. Simons Island, GA today?

Slack tide in St. Simons Island, GA is approximately 2:42 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in St. Simons Island, GA?

St. Simons Island, GA is currently in a transitional phase. Tonight's moon is 22% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are St. Simons Island, GA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for St. Simons Island, GA?

Tide predictions for St. Simons Island, GA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for St. Simons Island, GA?

Tide data for St. Simons Island, GA is sourced from NOAA Station #8677344. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8677344.

What is the moon phase in St. Simons Island, GA tonight?

Tonight the moon over St. Simons Island, GA is Waning Crescent (22% illuminated). This places St. Simons Island, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA